Knee Arthrodesis with Internal Fixation

Definition

Knee arthrodesis is a procedure that fuses the thigh bone to the lower leg bone at the knee. The joined bones may be secured with plates and screws. This method of support is called internal fixation. It provides support while the bones fuse together.

The knee will no longer be able to bend after this surgery.

Reasons for Procedure

Knee arthrodesis may only be done if all other repair methods are not appropriate or have failed. It may be done:

After a failed knee replacement

In patients with chronic joint infections that have led to severe knee damage

In patients with debilitating pain that cannot be resolved by other treatment options

Anesthesia

Description of the Procedure

An incision will be made over the knee. A small amount of bone from the ends of the thigh bone and top of the lower leg bone will be removed. Other knee joint structures like cartilage and ligaments or knee replacements will be removed. The ends of the bones will be joined together, usually with a bone graft. Metal plates will be screwed into the joined bones.

The incision will be closed. A bandage may be placed over the incision.

How Long Will It Take?

About 2 hours

Will It Hurt?

Anesthesia will block pain during the procedure. You will have pain after the procedure. Ask your doctor about medication to help manage pain.

Average Hospital Stay

The usual length of stay is about 3-4 days. It is possible that you may have to stay longer if complications arise. You may also go to a rehabilitation hospital to help you recover.

Post-procedure Care

At the Hospital

Right after the procedure, you may be given medication such as:

Pain medication

Antibiotics to prevent infection

Medication that prevents blood clots

Physical therapy often starts within 24 hours after your surgery. During this time you may need devices to help you walk.

You will be able to leave when you are able to get around and do basic daily care activities on your own.